Linda Cardinelli

Apparently certain Mad Men fans are like the show's narrative progress or one of Betty's dinner parties or from-scratch cakes: they take their time and don't rush it.

So before the last season kicks off Sunday on AMC at 10 p.m., here is what you need to know (warning: if you are a binge-watcher and haven't gotten to season six, stop reading now or forever hold your spoiler-griping):